Window screen



pr. l0, 1923.

W. M. HUTCHINSON WINDOW SCREEN F1 le'd Mar.

W y@ Z Patented Apr. IG, 1923.

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IILLIAM M. HUICHINSON',r OF NEW KENSINGTON, PENNSYLVANIA.

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Application filed March 5, 1921.

To all whom t may concern.:

Be it known that I, iN/IILLIAM M. HUTCH* iNsoN, a citizen of the United States, residing at New Kensington, in the county of IVestmoreland, State of Pennsylvania, have invented certain new and useful Improvements in Iindow Screens; and I do hereby declare the following to be a full, clear, and exact description of the invention, reference being had to the accompanying drawings, which form a part of this speciiication.

This invention relates to an improved means for attaching window screens in position. The object being to provide the screen frame or sash with automatic operating members, that will, by reason of thel weight or' said frame, operate said members to increase the width of the screen and engage with the sash strips of the window frame, and when relieved of said weight, said members will automatically return to their normal position. rThis I accomplish by means of two slidable strips operating with- .in the end rails of the screen frame, in a manner that will permit a vertical and lateral movement of said strips, whereby the width of said frame may be increased or diminished, and the invention further consists in the certain details of construction land combination of parts, as will be ully described hereafter.

In the accompanying drawings Figure l is a perspective view, partly broken away, of my improved window screen, the same being constructed and arranged in accordance with my invention.

Fig. 2 is a cross section through one of the end rails and a portion of an adjoining window frame.

Fig. 3 is an enlarged perspective view of one of the slidable members removed from the frame, and,

Fig. 4 shows a modied form of the invention.

To put my invention in practicable form I first provide four parts, comprising rails of suitable material, to form the frame to which suitable screen wire is attached in a manner well known in the art. This frame consists of the top and bottom rails 1, and the end rails 2, the latter being grooved (3) along their length to receive slidable members 5. These members comprise thin strips 5, capable of moving freely along the length and within the grooves of the end rails 2.

Serial No. 449,617.

Each of these members 5, are formed with two slots 6, arranged at an acute angle with the parallel edges and are adapted to provide a means for loosely attaching said members in position. This means comprises rivets 7, and washers 8, said rivets passing through the several slots and end rails 2. The top` of each of the slots 3, of the end rails I prefer to close with angular pieces 4, and form the top of the members 5, with corresponding angles 10, and to partly close the bottom oi said slots 3, and recess the bottom portion oi the sliding members 5, as will be best seen by reference to Fig. 1 oit the drawings.

The normal position of the sliding members 5 is wholly within their respective grooves, except a small portion 9, of their lower portions which protrude beyond the lower edge of the bottom rail of the frame.

In operation. It is only necessary to properly align the two end railsV with the opposite sash beads ll, of the window frame l2. The weight oi' the frame will move downward thereby causing the members at either end to move upward and outward, thereby increasing the width of the frame and locking the same in position, usually beneath a window sash. To remove the screen from the window 'frame it is only necessary to lift the same upward to relieve the weight from the slidable members and by their own weight move downward to their normal position within the grooves 3 of the end rails 2.

It is obvious that a single slidable member may be used in place of the two, as above described. A* tongue could be formed on the exposed edge of one of the end rails to connect with the sash beads on one side of the window frame, and a slidable member` for connection with the sash beads of the opposite side of the window iframe. This and other slight modified form of the invention may be made, without departing from the spirit of the invention.

At Fig. 4f of the drawing, the slidable members are connected by-linlis 6', which take the place of the slots 6, and rivets 7.

I claim;-

In a window screen comprising a top, bottom and end rails, the one securely at tached to the other to form a rectangular frame, grooves formed along the length ot said end rails, said grooves being of greater depth along their middle portion than :it tion and to permit free movement of the either end, sldable members operating in same in the direction of the length of the laid growl/les adapted to move verticallf alnd slot.

orizo-nta y, a means comprising anfru ar y- 5 arranged slots formed n each of seiad mem- VILLIAM M' HUTCHINSON' bers, and fixed pins projecting through said Nitnessz slots for attaching Said members in posi- E. J. BAXTER. 

